Re: [PATCH] x86/tdx: Use pg_level in TDX APIs, not the TDX-Module's 0-based level

[Sean Christopherson]

On Tue, Jan 20, 2026, Sean Christopherson wrote:
> Rework the TDX APIs to take the kernel's 1-based pg_level enum, not the
> TDX-Module's 0-based level.  The APIs are _kernel_ APIs, not TDX-Module
> APIs, and the kernel (and KVM) uses "enum pg_level" literally everywhere.
> 
> Using "enum pg_level" eliminates ambiguity when looking at the APIs (it's
> NOT clear that "int level" refers to the TDX-Module's level), and will
> allow for using existing helpers like page_level_size() when support for
> hugepages is added to the S-EPT APIs.
> 
> No functional change intended.
> 
> Cc: Kai Huang <kai.huang@xxxxxxxxx>
> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> Cc: Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx>
> Cc: Yan Zhao <yan.y.zhao@xxxxxxxxx>
> Cc: Vishal Annapurve <vannapurve@xxxxxxxxxx>
> Cc: Ackerley Tng <ackerleytng@xxxxxxxxxx>
> Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
> ---

This still applies cleanly, any chance this can be picked up for 7.1 to avoid
prototype conflicts in ongoing work?